and who eats them
谁吃它们呢?
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The ecology of the oceans is all about who eats what, and small changes in the population of certain creatures near the bottom of the web could have large effects on larger ones that eat them.
海洋生态系统其实就是谁吃谁的问题。 食物网底端的微小变化可能将对吃它们的较大生物构成影响。
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